Title: Assessing Geometric Accuracy of Ortho-imagery Subtitle: towards Product Specification of Fully Orthorectified Imagery for Urban Areas
Authors: DEVOS WIMKAY SIMON
Citation: GIM INTERNATIONAL vol. 19 no. 6 p. 14-17
Publisher: GITC bv
Publication Year: 2005
JRC N°: JRC30741
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC30741
Type: Articles in periodicals and books
Abstract: Artefacts such as leaning of buildings result from the processing of traditional orthorectified imagery, limiting their use in urban areas. Orthophoto production was usually limited to medium and small-scale applications: typically smaller than 1:10,000. Even in the 1990s, this market was so under-developed that line map restitution from stereo imagery was cheaper than producing large-scale orthophotos. With the arrival of digital sensors, which have a high degree of overlap and higher cost efficiency, fully orthorectified products have entered the market. The authors test the positional accuracy of fully orthorectified imagery for urban areas and suggest a product specification.
JRC Directorate:Space, Security and Migration

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